PLANT PHYSIOLOGY
PLANT GROWTH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Roots begin to grow.
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Stems start to grow towards the light.
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The seed starts to grow.
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Leaves start to form on the plant.
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Detailed explanation-1: -Solution: Photosynthesis by cotyledons does not happen during seed germination.
Detailed explanation-2: -Once the seedling starts to photosynthesize, it is no longer dependent on the seed’s energy reserves. The apical meristems start growing and give rise to the root and shoot. The first “true” leaves expand and can often be distinguished from the round cotyledons through their species-dependent distinct shapes.
Detailed explanation-3: -The process of seed germination includes the following five changes or steps: imbibition, respiration, effect of light on seed germination, mobilization of reserves during seed germination, and role of growth regulators and development of the embryo axis into a seedling.
Detailed explanation-4: -So, the correct answer is ‘Light’.